#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
    char a = 64;
    int n = (122 - 64) / 10 + 1;
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < 10; j++)
        {
            if (a < 122)
            {
                a = a + 1;
                printf("%c ", a);
            }
            else if (a >= 122)
                break;
        }
        printf("\n");
    }
    return 0;
}